Download zip file from hereand once downloaded, extract all the files to destination folder then go there and right click on "USB Image Tool.exe" and click on "Run as Administrator" to run the program.

Select the name of the file you want to restore, in our case Retro1006.zip:

Click on "Yes, I want to restore image ......."

And wait for the restoration process to be completed:

Then you can eject the card reader and remove the SD card. Then you can try it out in your Raspberry Pi. If all went well, your Pi should boot up (start) and automatically resize partition to fit your sd card.